"fotos" Changing the helix

[SharkAttak]

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[APEXER1]

Straightline in MN

 

[SharkAttak]

 

[SharkAttak]

has anyone tryed this?

 

[1000 stroker]

Apexer1, your off on your theory on how the secondary works. Pushing cars up hills etc has nothing to do with how the secondary works. The steeper the angle, the quicker the helix climbs the ramps hence the faster the clutch opens up or shifts. As Dirk said, a shallower angle would be shifting slower. Your helix may have worked but your clutch tuning explaination is not accurate. Are you studded?

 

[1000 stroker]

This helix set up is just for the Apex - er, gt, attack, and rtx with the stock set up from the factory. They all should have the black spring on the secondary. The spring should be in hole 6 on outside and hole 1 on inside.

Yes! I have been using the 50/40 for awile now and it is awsome. We don't have much snow now but i put about 100 miles on the sled with the helix under all conditions and i think it is about as good as it gets for a 5 minute bolt on under $100.00

It doesn't matter where you get the helix from it will be 50/40 as long as you don't have one custom cut... (Nobody can do it right.) Make sure it is right off the shelf in the box from whoever, Dalton, Exct....

Make sure your sled is in good working condition first. This doesn't cure an ill running sled because maybe your track is to tight,or way out of adjustment, or your boggy wheels are bad and exct.... When your happy with the way your sled runs and want that little extra, this will do it...

First of all, the secondary spring being black says nothing. They are all black. Yamaha codes theres with a small spec of paint on the black spring which tells you what spring it is. It will be silver. green, red, pink, something like that, just FYI.
Yes it does matter who cuts the helix!!! They are not all measured or cut the same. Very important.